Polyvinyl Alcohol (PVA)-Based Hydrogels: Recent Progress in Fabrication, Properties, and Multifunctional Applications

Polymers, Journal Year: 2024, Volume and Issue: 16(19), P. 2755 - 2755

Published: Sept. 29, 2024

Polyvinyl alcohol (PVA)-based hydrogels have attracted significant attention due to their excellent biocompatibility, tunable mechanical properties, and ability form stable three-dimensional networks. This comprehensive review explores the recent advancements in PVA-based hydrogels, focusing on unique fabrication strategies, multifunctional applications. Firstly, it discusses various facile synthesis techniques, including freeze/thaw cycles, chemical cross-linking, enhancement which led enhanced strength, elasticity, responsiveness external stimuli. These improvements expanded applicability of critical areas such as biomedical, environmental treatment, flexible electronics, civil engineering, well other emerging Additionally, integration smart functionalities, self-healing capabilities multi-responsiveness, is also examined. Despite progress, challenges remain, optimizing stability under varying conditions addressing potential toxicity cross-linkers. The concludes by outlining future perspectives, emphasizing fields like regenerative medicine, sustainability, advanced manufacturing. It underscores importance interdisciplinary collaboration realizing full these versatile materials address pressing societal challenges.

Language: Английский

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Anti-Freezing and Ultrasensitive Zwitterionic Betaine Hydrogel-Based Strain Sensor for Motion Monitoring and Human–Machine Interaction

Nano Letters, Journal Year: 2024, Volume and Issue: 24(17), P. 5351 - 5360

Published: April 18, 2024

Ultrasensitive and reliable conductive hydrogels are significant in the construction of human–machine twinning systems. However, extremely cold environments, freezing severely limits application hydrogel-based sensors. Herein, building on biomimetics, a zwitterionic hydrogel was elaborated for interaction employing multichemical bonding synergies experimental signal analyses. The covalent bonds, hydrogen electrostatic interactions construct dense double network structure favorable stress dispersion bond regeneration. In particular, zwitterions ionic conductors maintained excellent strain response (99 ms) electrical sensitivity (gauge factor = 14.52) while immobilizing water molecules to enhance weather resistance (−68 °C). Inspired by high sensitivity, sensors remote-control gloves were designed analyzing signals, demonstrating promising potential applications within specialized flexible materials symbiotic

Language: Английский

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Ultratransparent, stretchable, and durable electromagnetic wave absorbers

Matter, Journal Year: 2025, Volume and Issue: unknown, P. 101956 - 101956

Published: Jan. 1, 2025

Language: Английский

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A self-powered flexible piezoelectric sensor patch for deep learning-assisted motion identification and rehabilitation training system

Nano Energy, Journal Year: 2024, Volume and Issue: 123, P. 109427 - 109427

Published: Feb. 27, 2024

Language: Английский

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Stretchable ionic conductive gels for wearable human-activity detection

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 489, P. 151231 - 151231

Published: April 17, 2024

Language: Английский

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Flexible piezoelectric materials and strain sensors for wearable electronics and artificial intelligence applications

Chemical Science, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

This review covers the recent advances in flexible piezoelectric materials, which show great potential for strain sensors wearable electronics and artificial intelligence, focusing on microstructure engineering fabrication techniques.

Language: Английский

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Recent advances in flexible sensors: From sensing materials to detection modes

TrAC Trends in Analytical Chemistry, Journal Year: 2024, Volume and Issue: unknown, P. 118027 - 118027

Published: Oct. 1, 2024

Language: Английский

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Ways forward with conductive hydrogels: Classifications, properties, and applications in flexible electronic and energy gadgets

Materials Science and Engineering R Reports, Journal Year: 2025, Volume and Issue: 163, P. 100923 - 100923

Published: Jan. 8, 2025

Language: Английский

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Amino oxidized sodium alginate-based humidity-resistant triboelectric nanogenerator for human motion and respiration monitoring

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159842 - 159842

Published: Jan. 1, 2025

Language: Английский

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Simultaneous Visualization of Dynamical and Static Tactile Perception Using Piezoelectric-Ultrasonic Bimodal Electronic Skin Based on In Situ Polarized PVDF–TrFE/2DBP Composites and the TFT Array

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 26, 2025

The key to realizing completed bionic tactile perception of human skin using electronic relies on simultaneously distinguishing dynamic and static stimuli restoring their characteristic information, which is realized by integration several individual sensors but remains certain limitations including large physical size high energy consumption. In this study, a piezoelectric-ultrasonic bimodal (PUVE) based in situ polarized PVDF-TrFE/2DBP composites thin-film transistor (TFT) array fabricated. incorporation 2DBP into the PVDF-TrFE film polarization approach provide excellent piezoelectric ultrasonic performances composites. PUVE has an ultrahigh sensitivity 3.2 mV kPa-1 over wide pressure (0-310 kPa) range, with spatial resolution (50 μm) response time (40 ms). Meanwhile, demonstrated outstanding repeatability bending stability 1500 cycles cyclic 4000 180° bending. integrated functions can respond individually ensure perceiving decoupling dynamical mechanical signals one single sensor. further TFT array, visualization function contacting objects information texture location. Thus, expected have range applications intelligent robots prostheses.

Language: Английский

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